Full Profile of High4 Members (Name, Age, Height, Weight and Facts)


Get Closer with All of HIGH4 Member!

High4 is a South Korean boy band under N.A.P Entertainment. The group, debuted in April 2014, consists of four members: Sunggu, Alex, Myunghan and Youngjun. Their debut was featuring on a song by IU, the most popular Korean female artist. The song, called Not Spring, Love, or Cherry Blossom, got a high rank on Korean music sites such as Melon, Genie, etc. Their song was even nominated in 2 categories, ‘Digital Bonsang‘ and ‘Newcomer‘ at the Golden Disk Awards.

In February 2017, the leader of the group, Sunggu, left the after the release of their album. He quietly enlisted in the military in September 2017.



Birth Name : Alexsander Kim (알렉산더 김)

Stage Name : Alex (알렉스)

Birth date : September 7 1990

Position : Dance, Rapper

Blood Type : A

Height : 176 cm / 5’9”

Weight : 56 kg / 123 lbs

Sub Unit : High4 20

Ideal Type : “I like girls with nice personalities. As long as we have a connection, and if she is really nice, has a sense of humor and is funny, then I’m fine with that.”

Instagram : @_imlxx

Twitter : @_imlxx

Soundcloud : imlxx

Fun facts :

  • Alex was born in New York, he is actually an American but obtained Korean citizenship
  • He was in C-REAL’s music video for Sorry But I
  • He can speak three languages – English, Korean and Japanese
  • He is close with DAY6’s lead guitarist, Jae, because they are both from America
  • He said that he likes playing sports and painting
  • His favorite foods are sushi and pasta



Birth Name : Baek Myunghan (백명한)

Stage Name : Myunghan (백명한)

Birth Date : February 15 1993

Position : Vocalist

Blood Type : B

Height : 173 cm / 5’8”

Weight : 52 kg / 114 lbs

Ideal Type : “A girl who has a clean and innocent image”

Instagram : @raviss.h.ant

Fun facts :

  • Myunghan’s hometown is Daegu
  • When Myunghan was in high school, he joined a singing club and fell in love with singing
  • Myunghan said that he was a very playful student when he was in high school
  • He was in C-REAL’s music video for Sorry But I
  • He was accepted by the company when he joined one of the popular Korean audition programs, K-pop Star
  • He is the smallest in the group



Birth Name : Im Youngjun (임영준)

Stage Name : Youngjun (영준)

Birth Date : August 24 1995

Position : Rapper, Visual, Maknae

Blood Type : O

Height : 178 cm / 5’10”

Weight : 56 kg / 123 lbs

Sub Unit : High4 20

Ideal Type : “A girl who only looks at and loves only me”

Instagram : @0_jun2yo

Fun facts :

  • Youngjun is the youngest in the group
  • Despite being the maknae, he is the tallest in the group
  • Sunggyu said that Youngjun doesn’t listen to him anymore
  • He originally joined the company as an actor but he was moved as an idol trainee and debuted with High4 as the last member
  • He’d like to live a carefree life if he was born again
  • He was in C-REAL’s music video for Sorry But I
  • He participated in MIXNINE but unfortunately was eliminated in episode 10

SUNGGU (Former Member)


Birth Name : Kim Sunggu (김성구)

Stage Name : Sunggu (김성구)

Birth Date : January 22 1992

Position : Leader, Vocalist

Blood Type : O

Height : 176 cm / 5’9”

Weight : 63 kg / 138 lbs

Ideal Type : “A girl who looks innocent, feminine and has a nice smile”

Instagram : @reno_s9

Soundcloud : thunderslighthouse

Fun facts :

  • Sunggu’s hometown is Daebu Island
  • Sunggu is the longest trainee out of High4 members
  • He trained for 7-8 years before he debuted in High4
  • He was in C-REAL’s music video for Sorry But I
  • He has been friends with Thunder, IU and Fiestar’s Hyemi since being a trainee
  • If he were to be born again he’d like to be reborn as Alex because he wants to speak English fluently
  • During his pre-debut he participated in the musical Summer Snow
  • He performed on some original soundtracks for Korean drama
  • He left the group in February 2017

High4 Members’ Popularity Ranking


Who is the most popular member of High4?

Alex seems like the most popular member in High4 because among its members he has got the biggest number of followers on his Instagram. It is likely because he likes to update his SoundCloud with new songs, and he also participates in his friends’s vlog on YouTube. The fact that he can speak English fluently means that his overseas fans can interact with him without language difficulties.

The second most popular one is the maknae, Youngjun. As the face of the group he has got lots of fans not only because of his appearance but also because he is witty. He also participated in MIXNINE and this increased his popularity even more.

Myunghan has got the third biggest number of followers on his Instagram among the High4 members. He always updates his fans about his daily life through Instagram. The fact that he participated in the K-pop Star audition program also got him public recognition from that time.

The last one might be Sunggu. He got popularity through his OST songs in Korean Drama. But unfortunately he chose to leave the group and went to the military to do his mandatory duty.

High4’s Popularity Ranking

In Korean entertainment there something called ‘brand popularity ranking’. It’s a ranking that is published by Korean media outlets that reflects who is the most popular group or people in the past month. The ranking will be updated every month to show who is creating the most media buzz.

High4 members got popularity when they debuted in 2014 because they featured with the most popular Korean Female Artist, IU. Because of this, the group created so much buzz when they debuted.

Their debut song ranked at number 1 on Melon and other Korean music sites. The song also won on Inkigayo on May 11 2014. Not Spring, Love, or Cherry Blossom become the most popular ‘Spring carol’ in Korea. When Spring comes, the song will chart again on Korean music sites even though it was released a long time ago.

Unfortunately, these days there is no update about the group since their last comeback in February 2017. The group hasn’t planned any comeback yet.

Let’s hope they will make a comeback soon.